Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecce8260781e1407…

MALICIOUS

PDF

98.6 KB Created: 2021-03-16 06:53:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d6fb2672d03def3f909f1619712f9be SHA-1: d139fbcd11c8d93740c70b0b75d769b4b5463e69 SHA-256: ecce8260781e1407ea22a7e24ef831b0bd611991562f20f3fab92b9dd98e01f8
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website disguised as a service manual, likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the presence of an external URI and the overall detection suggest a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/wix?keyword=dbx+driverack+pa2+service+manual
    • http://vexetifiridik.mypressonline.com/how_to_analyse_a_graph_in_english.pdf
    • http://sosed.market/best_online_gre_test_prep_course04bb1.pdf
    • https://jabenawonidibe.weebly.com/uploads/1/3/5/3/135385032/todojomej-danojofinutuwef-kavabumeti.pdf
    • http://zinuxuf.22web.org/aspen_guidelines_2016_pancreatitis.pdf
    • http://wolorafo.22web.org/tikez.pdf
    • http://usejus.pro/73888848650wrzt6.pdf
    • http://50offstore.pro/gijitexemedzh0l.pdf
    • https://roluwisotem.weebly.com/uploads/1/3/4/3/134368144/nelowuxojewew-wotibutapomexa-zagebumolejaro.pdf
    • http://vodoroding.info/wofokimuxonuzopij97g7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/setaxilitozuko/vatatagesokuvax.pdf
    • https://uploads.strikinglycdn.com/files/beaeb574-3255-4957-aeb6-b35c02379176/trane_xl_80_manual.pdf
    • http://ziwemasux.myartsonline.com/vista_128_installer_manual.pdf
    • https://uploads.strikinglycdn.com/files/d3126c78-814d-4ac6-80df-2378e270af3f/software_project_management_strategies.pdf
    • https://s3.amazonaws.com/sixenogafopoj/18085842229.pdf
    • https://uploads.strikinglycdn.com/files/36aa720e-1955-43b2-9cd9-44fc98d708bb/act_book_2020_online.pdf
    • http://muluwokixo.onlinewebshop.net/tidolazoxezal.pdf
    • http://fomepufasele.atwebpages.com/how_to_start_a_john_deere_snowblower_with_electric_start.pdf
    • https://s3.amazonaws.com/mefadedosuw/the_ultimate_guide_to_tarot_spreads_liz_dean.pdf
    • https://s3.amazonaws.com/lanaladu/58772704364.pdf
    • https://uploads.strikinglycdn.com/files/6c94cdb4-8c16-49a6-beeb-1051d993a923/gospel_of_peter_resurrection_story.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011cbb.bin
26fbf6a37a6780267c4c8311998a328110aac7022ba864aeebf0ebb91a20215a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CBB 5376 bytes
font_01_sfnt_off00012ee9.bin
847d114f603eb6bdb8366737a22d4aaa952f1a6e1a689c698009a44adbf875d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE9 13500 bytes
font_02_sfnt_off00015966.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15966 16204 bytes
font_03_sfnt_off00016e93.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16E93 4324 bytes

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